Download presentation
Presentation is loading. Please wait.
Published byCharity Boone Modified over 9 years ago
2
Plan a banquet for the class? Main Dish Snack foods Beverages Forks Paper Plates Cups Desserts
3
VS
4
Aquatic Food Production: Food is harvested from high tropic levels (large top consumers…example salmon. Photosynthesis is less efficient by producers due to light reflection of water
5
Terrestrial Food Production: Most food harvested from low tropic levels (producers / herbivores)
6
Biodiversity Soil Water Air Human Health
7
Loss of grasslands forests and wetland for cultivation Loss of genetic diversity (wild crops replaced with monocrops)
8
Erosion Loss of fertility Salinization Desertification Increase soil pH
9
Waste water produced Aquifer depletion from increased irrigation
10
Large fossil fuel use in farming equipment causes release of greenhouse gases (CO2, N2O, and CH4) Pesticide sprays
11
Nitrates in Drinking water Blue baby Pesticides Bacterial contamination of meat (E. coli)
13
Inputs: Fertilizers, pesticides, fossil fuels, labor, sunlight, water equipment Characteristics: Heavy use of fossil fuels, lots of farming technology, monocrops (only one crop) Socio- Cultural: Fast production, large amounts, lots of waste Environmental impact: loss biodiversity Outputs: Air pollution, water pollution, wheat/corn, lots of income ($$)
14
See “slash and burn” and “shifting cultivation”
15
Inputs: lots of human labor, water, sunlight Characteristics: grow only enough to eat/ low tech Socio- Cultural: mostly LEDC, poor Environmental impact: maintains biodiversity, reduces pollution Outputs: Usually mixed crops; corn, beans and squash (all in same field)
17
Inputs: Labor, Cattle feed/ grazing grass Characteristics: large herds of cattle, used as only food source “Nomadic Herding” Socio- Cultural: Cattle THE source of life (even used as currency) Environmental impact: overgrazing, nomadic behavior Outputs: meat, milk
19
Inputs: antibiotics, fish food, cages, labor Characteristics: fish raised in large quantity Socio- Cultural: MEDC, employs large number of workers Environmental impact: growth of algae, water pollution Outputs: salmon, water pollution
21
Inputs: labor, seed Characteristics: fish and rice grown together in same, self sustaining ecosystem (fed by natural food chain) Socio- Cultural: LEDC countries, Environmental impact: reduces waste maintains biodiversity Outputs: rice, fish, income
22
Slash and burn- Farmers will “slash” or cut down a forest and burn the area in order to create a field for farming. Shifting Cultivation- Farmers utilize soil and forests for harvesting wood and crops until soil loses fertility, then they will move to a new area.
23
GMO- Genetically Modified Organisms Change genetic make up of living things to make them look, feel, and taste different Pesticides- used to kill pest organisms Herbicides- used to kill weeds Fertilizers- used to grow larger crops Irrigation- used to bring in more water Antibiotics/ Growth Hormones- used to grow healthier and larger animals
26
Food production in our country has a direct impact on the lifestyle and income of others around the world http://vimeo.com/8812686 http://vimeo.com/8812686
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.